<?php

namespace app\admin\controller\tongcheng;

use addons\tongcheng\enum\CouponAssignType;
use addons\tongcheng\enum\CouponGetType;
use addons\tongcheng\enum\CouponStatus;
use addons\tongcheng\enum\CouponType;
use app\admin\model\tongcheng\CouponModel;
use app\common\controller\Backend;
use think\Db;
use think\exception\DbException;
use think\exception\PDOException;
use think\exception\ValidateException;

/**
 * 优惠券
 *
 * @icon fa fa-circle-o
 */
class Coupon extends Backend
{

    protected $noNeedRight = ['disable'];

    /**
     * CouponModel模型对象
     * @var \app\admin\model\tongcheng\CouponModel
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\tongcheng\CouponModel;
        $this->view->assign("typeList", $this->model->getTypeList());
        $this->view->assign("statusList", $this->model->getStatusList());
        $this->view->assign("getTypeList", $this->model->getGetTypeList());
        $this->view->assign("assignTypeList", $this->model->getAssignTypeList());
    }



    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */


    /**
     * 查看
     */
    public function index()
    {
        //当前是否为关联查询
        $this->relationSearch = true;
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if ($this->request->isAjax()) {
            //如果发送的来源是Selectpage，则转发到Selectpage
            if ($this->request->request('keyField')) {
                return $this->selectpage();
            }
            list($where, $sort, $order, $offset, $limit) = $this->buildparams();

            $list = $this->model
                ->with(['zone'])
                ->where($where)
                ->order($sort, $order)
                ->paginate($limit);

            foreach ($list as $row) {

                $row->getRelation('zone')->visible(['name']);
            }

            $result = array("total" => $list->total(), "rows" => $list->items());

            return json($result);
        }
        return $this->view->fetch();
    }

    /**
     * 添加
     *
     * @return string
     * @throws \think\Exception
     */
    public function add()
    {
        if (false === $this->request->isPost()) {
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);
        $params = $this->valid($params);
        if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
            $params[$this->dataLimitField] = $this->auth->id;
        }
        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            if ($this->modelValidate) {
                $name     = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                $this->model->validateFailException()->validate($validate);
            }
            $result = $this->model->allowField(true)->save($params);

            if ($params['get_type'] == CouponGetType::ASSIGN) {
                // $params['id'] = $this->model->id;
                CouponModel::assignCoupon($this->model);
            }

            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($result === false) {
            $this->error(__('No rows were inserted'));
        }
        $this->success();
    }

    /**
     * 编辑
     *
     * @param $ids
     * @return string
     * @throws DbException
     * @throws \think\Exception
     */
    public function edit($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        if ($row['total'] != $row['stocks']) {
            $this->error('优惠券已发放，不能编辑');
        }

        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds) && !in_array($row[$this->dataLimitField], $adminIds)) {
            $this->error(__('You have no permission'));
        }
        if (false === $this->request->isPost()) {
            $this->view->assign('row', $row);
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);
        $params = $this->valid($params);
        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            if ($this->modelValidate) {
                $name     = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                $row->validateFailException()->validate($validate);
            }
            $result = $row->allowField(true)->save($params);
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if (false === $result) {
            $this->error(__('No rows were updated'));
        }
        $this->success();
    }

    /**
     * 禁用优惠券
     *
     * @param $ids
     * @return string
     * @throws DbException
     * @throws \think\Exception
     */
    public function disable($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        if ($row['status'] != CouponStatus::NORMAL) {
            $this->error("优惠券【{$row['name']}】当前状态无须禁用");
        }

        Db::startTrans();
        try {

            $result = $row->allowField(true)->save(['status' => CouponStatus::DISABLE]);
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if (false === $result) {
            $this->error(__('No rows were updated'));
        }
        $this->success();
    }

    /**
     * 删除
     *
     * @param $ids
     * @return void
     * @throws DbException
     * @throws DataNotFoundException
     * @throws ModelNotFoundException
     */
    public function del($ids = null)
    {
        if (false === $this->request->isPost()) {
            $this->error(__("Invalid parameters"));
        }
        $ids = $ids ?: $this->request->post("ids");
        if (empty($ids)) {
            $this->error(__('Parameter %s can not be empty', 'ids'));
        }
        $pk       = $this->model->getPk();
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            $this->model->where($this->dataLimitField, 'in', $adminIds);
        }
        $list = $this->model->where($pk, 'in', $ids)->select();

        $count = 0;
        Db::startTrans();
        try {
            foreach ($list as $item) {
                if ($item['total'] != $item['stocks']) {
                    $this->error('优惠券已发放，不能删除');
                }
                $count += $item->delete();
            }
            Db::commit();
        } catch (PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($count) {
            $this->success();
        }
        $this->error(__('No rows were deleted'));
    }

    /**
     * 验证优惠券
     * @param $data
     * @return array
     */
    protected function valid($data, $coupon = null)
    {
        if (in_array($data['type'], [CouponType::VOUCHER, CouponType::FULL]) && (empty($data['money']) || $data['money'] <= 0)) {
            $this->error('优惠金额必须大于0');
        }
        if ($data['type'] == CouponType::FULL) {
            if (empty($data['min_money']) || $data['min_money'] <= 0) {
                $this->error('满减金额必须大于0');
            }
        } else if ($data['type'] == CouponType::DISCOUNT) {
            if (empty($data['discount']) || $data['discount'] <= 0 || $data['discount'] >= 10) {
                $this->error('折扣必须大于0小于10');
            }
        }

        if ($data['get_type'] == CouponGetType::ASSIGN) {
            if ($data['assign_type'] == CouponAssignType::NONE) {
                $this->error('指定发放方式不能为空');
            }
            if ($data['assign_type'] == CouponAssignType::USERS && empty($data['assign_user_ids'])) {
                $this->error('指定用户不能为空');
            }
        }

        if (empty($data['expire_day']) || $data['expire_day'] <= 0) {
            $this->error('有效天数必须大于0');
        }
        if (empty($data['total']) || $data['total'] <= 0) {
            $this->error('发放总量必须大于0');
        }
        if (empty($data['start_time'])) {
            $this->error('开始时间不能为空');
        }
        if (empty($data['end_time'])) {
            $this->error('结束时间不能为空');
        }
        if (strtotime($data['start_time']) >= strtotime($data['end_time'])) {
            $this->error('开始时间不能大于等于结束时间');
        }

        $data['start_time'] = strtotime($data['start_time']);
        $data['end_time']   = strtotime($data['end_time']);
        $data['stocks']     = $data['total'];
        $data['limit_use']  = empty($data['limit_use']) || $data['limit_use'] < 0 || !is_numeric($data['limit_use']) ? 0 : intval($data['limit_use']);
        return $data;
    }
}
